home/wangshumin
[[email protected] ~]$ hdfs dfs -cat /user/hive/warehouse/hive2_db1.db/stuin
cat: `/user/hive/warehouse/hive2_db1.db/stuin': Is a directory
[[email protected] ~]$ hdfs dfs -rm r /user/hive/warehouse/hive2_db1.db/stuin
rm: `r': No such file or directory
rm: `/user/hive/warehouse/hive2_db1.db/stuin': Is a directory
[

[email protected] ~]$ hdfs dfs -rm /user/hive/warehouse/hive2_db1.db/stuout
rm: `/user/hive/warehouse/hive2_db1.db/stuout': Is a directory
[[email protected] ~]$ hdfs dfs 
Usage: hadoop fs [generic options]
[-appendToFile <localsrc> ... <dst>]
[-cat [-ignoreCrc] <src> ...]
[-checksum <src> ...]
[-chgrp [-R] GROUP PATH...]
[-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...]
[-chown [-R] [OWNER][:[GROUP]] PATH...]
[-copyFromLocal [-f] [-p] <localsrc> ... <dst>]
[-copyToLocal [-p] [-ignoreCrc] [-crc] <src> ... <localdst>]
[-count [-q] <path> ...]
[-cp [-f] [-p] <src> ... <dst>]
[-createSnapshot <snapshotDir> [<snapshotName>]]
[-deleteSnapshot <snapshotDir> <snapshotName>]
[-df [-h] [<path> ...]]
[-du [-s] [-h] <path> ...]
[-expunge]
[-get [-p] [-ignoreCrc] [-crc] <src> ... <localdst>]
[-getfacl [-R] <path>]
[-getmerge [-nl] <src> <localdst>]
[-help [cmd ...]]
[-ls [-d] [-h] [-R] [<path> ...]]
[-mkdir [-p] <path> ...]
[-moveFromLocal <localsrc> ... <dst>]
[-moveToLocal <src> <localdst>]
[-mv <src> ... <dst>]
[-put [-f] [-p] <localsrc> ... <dst>]
[-renameSnapshot <snapshotDir> <oldName> <newName>]
[-rm [-f] [-r|-R] [-skipTrash] <src> ...]
[-rmdir [--ignore-fail-on-non-empty] <dir> ...]
[-setfacl [-R] [{-b|-k} {-m|-x <acl_spec>} <path>]|[--set <acl_spec> <path>]]
[-setrep [-R] [-w] <rep> <path> ...]
[-stat [format] <path> ...]
[-tail [-f] <file>]
[-test -[defsz] <path>]
[-text [-ignoreCrc] <src> ...]
[-touchz <path> ...]
[-usage [cmd ...]]


Generic options supported are
-conf <configuration file>     specify an application configuration file
-D <property=value>            use value for given property
-fs <local|namenode:port>      specify a namenode
-jt <local|jobtracker:port>    specify a job tracker
-files <comma separated list of files>    specify comma separated files to be copied to the map reduce cluster
-libjars <comma separated list of jars>    specify comma separated jar files to include in the classpath.
-archives <comma separated list of archives>    specify comma separated archives to be unarchived on the compute machines.


The general command line syntax is
bin/hadoop command [genericOptions] [commandOptions]


[

[email protected] ~]$ hdfs dfs -rmdir /user/hive/warehouse/hive2_db1.db/stuout
[[email protected] ~]$ hdfs dfs -ls /
Found 7 items
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:32 /data
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:41 /dataload_balance
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:18 /flumedata2
drwxr-xr-x   - wangshumin supergroup          0 2018-02-26 15:35 /hbase
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:16 /hivedata
drwx-wx-wx   - wangshumin supergroup          0 2018-03-12 13:04 /tmp
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 06:50 /user
[

[email protected] ~]$ hdfs dfs -rmdir /hivedata
[[email protected] ~]$ hdfs dfs -ls /
Found 6 items
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:32 /data
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:41 /dataload_balance
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 07:18 /flumedata2
drwxr-xr-x   - wangshumin supergroup          0 2018-02-26 15:35 /hbase
drwx-wx-wx   - wangshumin supergroup          0 2018-03-12 13:04 /tmp
drwxr-xr-x   - wangshumin supergroup          0 2018-02-09 06:50 /user
[[email protected] ~]$ hdfs dfs -ls /user/hive/warehouse/hive2_db1.db/
Found 4 items
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:31 /user/hive/warehouse/hive2_db1.db/stu1
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu2
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu3
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:13 /user/hive/warehouse/hive2_db1.db/stuin
[[email protected] ~]$ hdfs dfs -ls /user/hive/warehouse/hive2_db1.db/
Found 4 items
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:31 /user/hive/warehouse/hive2_db1.db/stu1
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu2
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu3
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:13 /user/hive/warehouse/hive2_db1.db/stuin
[[email protected] ~]$ hdfs dfs -put  stu3 /user/hive/warehouse/hive2_db1.db/stuout
[[email protected] ~]$ hdfs dfs -ls /user/hive/warehouse/hive2_db1.db/stuout
-rw-r--r--   3 wangshumin supergroup         53 2018-03-12 13:22 /user/hive/warehouse/hive2_db1.db/stuout
[[email protected] ~]$ hdfs dfs -cat  /user/hive/warehouse/hive2_db1.db/stuout
1 , zhangshan , 20
2 , wangwu  , 19
3 , xiaolu  , 26
[[email protected] ~]$ hdfs dfs -put  stu3 /user/hive/hivedata
[[email protected] ~]$ hdfs dfs -cat   /user/hive/hivedata/stu3
1 , zhangshan , 20
2 , wangwu  , 19
3 , xiaolu  , 26
[[email protected] ~]$ hdfs dfs -rm   /user/hive/hivedata/stu3
18/03/12 13:31:51 INFO fs.TrashPolicyDefault: Namenode trash configuration: Deletion interval = 0 minutes, Emptier interval = 0 minutes.
Deleted /user/hive/hivedata/stu3
[[email protected] ~]$ hdfs dfs -ls   /user/hive/hivedata
[[email protected] ~]$ hdfs dfs -put  stu3 /user/hive/hivedata
[[email protected] ~]$ hdfs dfs -cat   /user/hive/hivedata/stu3
1 , zhangshan , 20
2 , wangwu  , 19
3 , xiaolu  , 26
[[email protected] ~]$ hdfs dfs -cat   /user/hive/hivedata/stu3
1 , zhangshan , 20
2 , wangwu  , 19
3 , xiaolu  , 26
[[email protected] ~]$ hdfs dfs -ls   /user/hive/warehouse/hive2_db1.db
Found 5 items
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:31 /user/hive/warehouse/hive2_db1.db/stu1
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu2
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu3
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:13 /user/hive/warehouse/hive2_db1.db/stuin
-rw-r--r--   3 wangshumin supergroup         53 2018-03-12 13:22 /user/hive/warehouse/hive2_db1.db/stuout
[[email protected] ~]$ vim hsql
[[email protected] ~]$ cat hsql 
 create external table  stuout( id int , name  String , age  int ) 
 row format delimited 
 fields terminated by ',' 
 location "/user/hive/hivedata"
 ;
[[email protected] ~]$ vim  stu2
[[email protected] ~]$ pwd
/home/wangshumin
[[email protected] ~]$ hdfs dfs -ls  /user/hive/warehouse/hive2_db1.db
Found 6 items
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:31 /user/hive/warehouse/hive2_db1.db/stu1
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:59 /user/hive/warehouse/hive2_db1.db/stu12
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu2
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 11:48 /user/hive/warehouse/hive2_db1.db/stu3
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:13 /user/hive/warehouse/hive2_db1.db/stuin
-rw-r--r--   3 wangshumin supergroup         53 2018-03-12 13:22 /user/hive/warehouse/hive2_db1.db/stuout
[[email protected] ~]$ hdfs dfs -cat  /user/hive/warehouse/hive2_db1.db/stu12
cat: `/user/hive/warehouse/hive2_db1.db/stu12': Is a directory
[[email protected] ~]$ hdfs dfs -ls  /user/hive/warehouse/hive2_db1.db/stu12
Found 3 items
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:56 /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:58 /user/hive/warehouse/hive2_db1.db/stu12/coutr=10001
drwxr-xr-x   - wangshumin supergroup          0 2018-03-12 13:59 /user/hive/warehouse/hive2_db1.db/stu12/coutr=10002
[[email protected] ~]$ hdfs dfs -ls  /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000
Found 2 items
-rwxr-xr-x   3 wangshumin supergroup         69 2018-03-12 13:55 /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000/stu2
-rwxr-xr-x   3 wangshumin supergroup         69 2018-03-12 13:56 /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000/stu2_copy_1
[[email protected] ~]$ hdfs dfs -cat  /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000/stu2
1 ,zhangshan ,20 ,1000
2 ,wangwu  ,  19 ,1100
3 ,xiaolu  ,  26 ,1200
[[email protected] ~]$ hdfs dfs -cat  /user/hive/warehouse/hive2_db1.db/stu12/coutr=10000/stu2_copy_1
1 ,zhangshan ,20 ,1000
2 ,wangwu  ,  19 ,1100
3 ,xiaolu  ,  26 ,1200
[[email protected] ~]$ 

hive> load data local inpath "/home/wangshumin/stu2"  into  table stu12 partition(coutr="10000");

Loading data to table hive2_db1.stu12 partition (coutr=10000)
Partition hive2_db1.stu12{coutr=10000} stats: [numFiles=1, numRows=0, totalSize=69, rawDataSize=0]
OK
Time taken: 0.716 seconds
hive> load data local inpath "/home/wangshumin/stu2"  into  table stu12 partition(coutr="10000");
Loading data to table hive2_db1.stu12 partition (coutr=10000)
Partition hive2_db1.stu12{coutr=10000} stats: [numFiles=2, numRows=0, totalSize=138, rawDataSize=0]
OK
Time taken: 0.527 seconds
hive> select  * from  stu12;
OK
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
Time taken: 0.089 seconds, Fetched: 6 row(s)
hive> 
    > 
    > 
    > 
    > load data local inpath "/home/wangshumin/stu2"  into  table stu12 partition(coutr="10001");
Loading data to table hive2_db1.stu12 partition (coutr=10001)
Partition hive2_db1.stu12{coutr=10001} stats: [numFiles=1, numRows=0, totalSize=69, rawDataSize=0]
OK
Time taken: 0.51 seconds
hive> select  * from  stu12;
OK
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
NULLzhangshan NULL10001
NULLwangwu  NULL10001
NULLxiaolu  NULL10001
Time taken: 0.131 seconds, Fetched: 9 row(s)
hive> load data local inpath "/home/wangshumin/stu2"  into  table stu12 partition(coutr="10002");
Loading data to table hive2_db1.stu12 partition (coutr=10002)
Partition hive2_db1.stu12{coutr=10002} stats: [numFiles=1, numRows=0, totalSize=69, rawDataSize=0]
OK
Time taken: 0.397 seconds
hive> select  * from  stu12;
OK
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
NULLzhangshan NULL10000
NULLwangwu  NULL10000
NULLxiaolu  NULL10000
NULLzhangshan NULL10001
NULLwangwu  NULL10001
NULLxiaolu  NULL10001
NULLzhangshan NULL10002
NULLwangwu  NULL10002
NULLxiaolu  NULL10002
Time taken: 0.084 seconds, Fetched: 12 row(s)
hive> 
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